It's generally easier to work with data frames, so read your data with students <- read.spss(yourFile, to.data.frame=TRUE)
Then subset will work as expected: subset(students, Sex == 1) If you would rather keep the data as a list you could do something like lapply(students, function(x) x[students$Sex == 1]) hth, Kingsford Jones On Sun, Nov 30, 2008 at 2:15 PM, Simone Gabbriellini <[EMAIL PROTECTED]> wrote: > sorry for my bad presentation... > > read.spss gives me this: > >> students > $Auno > [1] 6 1 2 2 1 3 4 2 4 2 4 4 1 1 NA 1 4 2 1 1 1 5 4 > [24] 2 1 2 1 2 1 4 4 1 1 1 2 1 6 1 1 1 1 1 2 1 2 1 > [47] 2 2 1 4 2 4 3 1 1 1 1 3 2 1 4 4 4 4 2 4 1 2 4 > [70] 1 3 4 5 2 4 3 5 5 4 2 1 1 1 1 4 5 2 4 4 1 4 2 > [93] 1 2 3 3 2 1 2 2 2 1 1 1 3 5 5 5 2 NA 2 1 NA 5 2 > [116] 1 4 2 NA 1 4 5 2 3 1 1 1 1 4 2 1 1 3 2 4 2 4 2 > [139] 1 4 1 2 4 1 2 3 2 1 1 2 4 4 3 4 1 1 3 2 1 1 2 > [162] 1 2 5 5 5 1 4 3 2 3 3 2 1 1 5 1 2 1 1 2 1 2 1 > [185] 1 2 1 1 1 1 3 4 2 1 4 2 4 1 4 2 1 1 1 2 1 4 1 > [208] 5 1 1 4 4 2 1 1 5 4 1 1 5 5 4 1 4 > > $Sex > [1] 2 1 2 1 2 2 2 2 1 2 1 1 2 1 0 2 2 2 2 2 2 2 2 1 2 2 1 2 2 1 2 2 2 1 > [35] 2 2 2 1 1 2 2 2 2 2 2 2 2 2 1 1 1 1 2 2 2 2 2 2 2 1 1 2 2 2 2 2 1 2 > [69] 2 1 2 1 2 1 2 2 2 2 2 2 1 2 2 2 1 2 2 2 1 1 1 2 1 2 1 2 2 2 2 2 2 2 > [103] 2 2 2 2 1 2 2 2 2 2 2 2 2 2 1 2 0 2 2 2 1 2 2 1 2 1 2 2 1 1 2 1 2 1 > [137] 2 1 2 1 1 1 1 1 1 2 1 1 2 2 2 2 1 1 2 2 2 2 2 2 2 2 2 2 2 2 1 1 2 2 > [171] 2 2 2 2 2 1 1 1 1 2 2 2 2 2 2 2 2 1 2 2 1 1 1 1 1 2 0 2 2 1 2 1 2 2 > [205] 1 2 2 2 2 2 2 2 2 2 1 2 2 1 1 2 2 2 2 2 > > .... > > I would like to filter - or subset - the dataset for $Sex = 1 (in this case > means male...), for example... > > thanks anyway, > Simone > > > > Il giorno 30/nov/08, alle ore 21:49, Don MacQueen ha scritto: > >> It is. >> >> For example, if you have a variable stored as a vector named "x", and >> another variable stored as aa vector named "y", you can select cases of y >> where x is greater than 3 by using >> >> y[x>3] >> >> However, you're going to have to provide more information in order to get >> a better answer than that (see the posting guide, link included with every >> post to r-help). In particular, I'm guessing that the answer you really want >> looks somewhat different than my example -- but this depends on the exact >> structure of what read.spss() produces. >> >> I'd also suggest reading some of the documentation available from the R >> website (CRAN), notably, "An Introduction to R". >> >> -Don >> >> At 9:36 PM +0100 11/30/08, Simone Gabbriellini wrote: >>> >>> dear list, >>> >>> I have read a spss file with read.spss() >>> >>> now I have a list with all my variable stored as vectors. >>> >>> is it possible to selec cases based on the value of one or more >>> variables? >>> >>> thank you, >>> Simone >>> >>> ______________________________________________ >>> R-help@r-project.org mailing list >>> https:// stat.ethz.ch/mailman/listinfo/r-help >>> PLEASE do read the posting guide http:// www. >>> R-project.org/posting-guide.html >>> and provide commented, minimal, self-contained, reproducible code. >> >> >> -- >> --------------------------------- >> Don MacQueen >> Lawrence Livermore National Laboratory >> Livermore, CA, USA >> 925-423-1062 >> [EMAIL PROTECTED] >> --------------------------------- > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
